Trailing Slash does not work from address bar when enabled Static Export

[zulalnb]

Description

When enabled static export and trailing slash together, URL in the internal links redirects to the version with trailing slash, but in the address bar does not.

Verifications

• I've verified that the problem I'm experiencing isn't covered in the docs.
• I've searched for similar, existing issues on GitHub and Stack Overflow.
• I've compared my app to a working example to look for differences.

Mandatory reproduction URL

https://github.com/zulalnb/next-intl-static-export-trailing-slash-issue

Reproduction description

Steps to reproduce:

1. type git clone https://github.com/zulalnb/next-intl-static-export-trailing-slash-issue.git
2. type npm install
3. type npm run build
4. type npx serve@latest out
5. open http://localhost:3000/
6. enter http://localhost:3000/en/sub in the address bar manually

Expected behaviour

I expected to ensure that entering a URL directly in the address bar redirects to the version with a trailing slash.